The points P(cp, c/p) & Q(cq, c/q) lie on the rectangular hyperbola xy = c^2.
The chord PQ subtends a right angle at another point R(cr, c/r) on the hyperbola.
The points P(cp, c/p) & Q(cq, c/q) lie on the rectangular hyperbola xy = c^2.
The chord PQ subtends a right angle at another point R(cr, c/r) on the hyperbola.